A particle of mass m moves on the x axis as follows It starts form rest at t 0 from the point x 0 and comes to rest at the point

Question

A particle of mass m moves on the x axis as follows It starts form rest at t 0 from the point x 0 and comes to rest at the point x 1 No other information is available about its motion at intermediate time 0 t 1 if a denotes the instantaneous acceleration of the particle then IIT JEE 1993 Choose only 1 answer A a cannot remain positive for all t in the interval 0 t 1 B la cannot exceed 2 at any point in its path C a must be 4 at some point or points in its path Your Answer a must change sign during the motion

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